Perrier, T. La médecine astrologique, Lyons, 1905, 88 pp. Slight.
Petrus de Prussia. Vita B. Alberti Magni, 1621.
Petrus Hispanus. Summa experimentorum sive thesaurus pauperum, Antwerp, 1497.
Philips, H. Medicine and Astrology, 1867.
Picavet, F. Esquisse d’une histoire comparée des philosophies médiévales, 2nd edition, Paris, 1907.
Pico della Mirandola. Opera omnia, 1519.
Pistis-Sophia, ed. Schwartze und Petermann, Coptic and Latin, 1851. Now for the first time Englished, by G. R. S. Mead, 1896.
Pitra, J. B. Analecta novissima, 1885-1888.
Analecta sacra, 1876-1882.
Spicilegium solesmense, 1852-1858.
Poisson, Théories et symboles des Alchimistes, Paris, 1891.
Poole, R. L. Illustrations of the History of Medieval Thought in the Departments of Theology and Ecclesiastical Politics, 1884; revised edition, 1920.
The Masters of the Schools at Paris and Chartres in John of Salisbury’s Time, in EHR XXXV (1920) 321-42.